Question

Only $25\%$of the intensity of a polarized light wave passes through a polarizing filter. What is the angle between the electric field and the axis of the filter?

Short answer

Angle between field of force and also the axis of the filter, $\theta =60°$

Step-by-step solution

Polarizing filter

Horizontal polarizing occurs when light reflects off horizontal surfaces like the road, water, or snow. A vertically oriented polarized filter will reduce glare while still allowing many light to experience. A polarized filter on your camera can assist decrease glare. The identical principle applies to polarized sunglasses.

Calculate θ

$I/I_o=25\%$

We may find angle by staring the subsequent relation$\theta$:

$I=I_o{\cos }^2\theta$

We are now calculating for$\theta$

$I=I_o(\cos \theta {)}^2$

${\cos }^2\theta =\frac{I}{I_o}$ (Where is $I/I_o=25\%$)

${\cos }^2\theta =0.25$

$\cos \theta =0.5$

$\theta =60°$